IE: Inline style not removed

[Tobiasz Cudnik]

Regression since 3.3.2 (worked on 3.3.1). Apply and try to remove bold on some non-collaped selection when in enterMode=BR, it will not be removed.

1. Set config.enterMode = CKEDITOR.ENTER_BR
2. Type some text
3. Select some text
4. Apply bold
5. Apply bold again to remove this style

Expected: Text is not bold.

Present: Text is still bold.

[Tobiasz Cudnik]

It turns out that this behavior was caused by custom selectionChange listener

editor.on('selectionChange', function()
{
  console.log('foo')
});

Without it, i can't reproduce this issue anymore.